To All Reading This, Hello, and thank you for taking the time to come to my thread and read my question. I am grateful for your time and your advice. I will be moving to Bangkok Thailand for up to a year and I want to use my iPhone there. Can anyone recommend simple to use quality software that will enable my iPhone in Bangkok with a SIM card purchased in Bangkok? Thank you. it is important to me that the software be simple and pretty much push button stuff. can I reverse any changes to the iPhone that might prevent it from being used on my home AT&T network when i return?